TOO many people saying it is the gas cap vent! It is NOT. The vent only lets air into the tank, NOT OUT, otherwise there would be gas squirting out the hole. Do not drill a hole in the cap. It is NOT the shut off solenoid! Some briggs engines have 2 different carbs, one is for gravity feed and one is for pump feed. Gravity feed carb has a lighter needle and seat that does not hold as much pressure as the pump carb. Fuel pump puts out more pressure than gravity! If someone put a gravity carb on that could be the issue. I also very much like @KensSmallEngineRepair comment! 💪
@pattayperformance
8 ай бұрын
Mind blown about the carb! Why call it a fuel shut off solenoid if it doesn’t shut off fuel 🤣😑
@mowersbymitch
9 ай бұрын
Jason get a external tank and connect it to the carb and gravity feed it. Crank and let the engine run, then leave the gravity fed tank connected and see if the crankcase fills with gas. If so, then the needle and seat isn't shutting the fuel off once the bowl is full. Check the needle tip, seat and float. If the gravity fed tank doesn't fill the crankcase with gas,, then it sounds like the fuel pump diaphragm is bad and leaking gas into the pulse line straight into the crankcase. Don't disregard the gas cap vent, build up tank pressure will cause some weird things to happen.
@pattayperformance
9 ай бұрын
Thank you! I was looking at pictures of tanks via ebay and I see tank vents. Just a single port for the feed line. Was trying not to pull the base off the frame. Going to pull the carb and take a peek…do some cleaning/adjusting and re-install and start the Diag process. I’m going to pull the main line off the fuel pump and hook it right to carb and leave it in a bucket or something and see what happens
@mowersbymitch
9 ай бұрын
@@pattayperformanceHopefully you get it sorted out so you can get it sold.
@pattayperformance
8 ай бұрын
@@mowersbymitch TY
@RichsMowersNBlowers
9 ай бұрын
Here's the deal, We know it has a pump. We know a needle closes off the gas by the float. If the float and need is working properly no gas can pass. Check the needle and seat.
@pattayperformance
8 ай бұрын
What’s the purpose of the fuel shut off solenoid at the bottom of the carb?
@wilkersonsmowershop8379
9 ай бұрын
Sounds like a good candidate for a manual fuel shut off brother. Im a firm believer in the lawn mower gremlin.
@pattayperformance
9 ай бұрын
I add fuel filters on all tractors I sell… A guy came to buy one and said it didn’t need it bc it had a pump. I just played stupid. Adding an in-line filter is extra insurance but doesn’t repair my issue. You know the new owner will forget to turn it off or on and it will be my problem.
@wilkersonsmowershop8379
9 ай бұрын
Is there anything in the gas tank area that could make the tank overheat. Maybe it's getting hot and putting more pressure on the pump than the fuel pump can handle after it's cut off.
@henrymurawskibigdogrepair
9 ай бұрын
Jason it’s like a Sciphone when you say fun water out of a bucket it’ll continually draw from the bucket to wherever you’re putting it look at the filter is at full gas then you can tell it’s pulling up gas to the line to the Carberater if there’s an air pocket in the filter then it’s not pulling up gas
@pattayperformance
9 ай бұрын
Ok, I didn’t get to the part yet where I change fuel filters but I will start with that. I did have the tractor running and this happened during repairs and restoration process.
@freedommowers420
9 ай бұрын
I still need to get those numbers over to you on that tractor. I’m sorry things have been busy here. I believe it still has somewhat of a siphon going on. That Nikki carb is just letting fuel get by on either the o ring or the main gasket.
@nickflopper
9 ай бұрын
But it's actually a walbro
@pattayperformance
9 ай бұрын
I did find a model number and ordered some parts we shall see if they work
@KensSmallEngineRepair
9 ай бұрын
Hook up gravity tank to confirm needle and seat are good, otherwise vacuum fuel pump pulse line sucking fuel into crankcase
@pattayperformance
8 ай бұрын
TY
@boneyardgaragesmallenginer188
9 ай бұрын
Check your gas cap vent. If it’s clogged, it will pressurize the gas tank and bypass your needle and seat.
@pattayperformance
9 ай бұрын
Gas cap looks like a hockey puck to me 🤣😑. I’ll take a closer look
@caseybszombiemowers2569
9 ай бұрын
Pressure in the line continues to feed it. Fuel shut off valve will stop the problem. But the customers don't always use them. So I have not been cutting the electric shut off, better to have 2 failsafe. Later...
@pattayperformance
8 ай бұрын
TY
@ericstubbs438
9 ай бұрын
Needle & seat. I would also install a fuel shutoff.
@pattayperformance
8 ай бұрын
All tractors get one installed but we all know how many people will forget. I don’t want any call back or angry people showing back up. NY ain’t to kind to law abiding citizens
@FloridaManMason
9 ай бұрын
if you wanna just make shit work, drill a small hole in the gas cap, (or make a gas tank vent). also install a fuel shutoff, like all of the other commenters are saying, the number one problem on any mower is gas sitting in the carb, if venting the gas cap dont work installing a fuel cut off will, and you will never have a carb problem again if you install a cut off and run it out of gas before you park it.
@pattayperformance
8 ай бұрын
TY
@vancemacd6315
9 ай бұрын
Its your carb. The fuel shut off isnt working. There is a wire that feeds to the bottom. The hose has enough fuel to flood the engine cyphon pressure would be enough. I work on small engines.
@pattayperformance
8 ай бұрын
TY the fuel Solenoid tested good
@vancemacd6315
8 ай бұрын
@@pattayperformance one quick fix would be install a manual fuel shutoff before the carb. Honestly that fuel shut off is The only thing I can think of that failed. It's easy to test when pluged in it usually makes a click. Some install a cheap on off flow switch before carb, some do a new carb solenoid and some replace thee hole carb. Good luck.👍🏻👍🏻✌️✌️
@01cthompson
9 ай бұрын
Total shot in the dark here. The old gasoline powered Ford E350 ambulances would build up pressure in the gas tanks to the point they became a fire hazard. The cause was claimed to be rerouted fuel lines preventing pressure relief. The short term fix before they went diesel was a modified, venting fuel cap. Maybe your fuel cap has an issue?
@pattayperformance
8 ай бұрын
Will take a closer look!
@monkeywentbananas
9 ай бұрын
Bad needle and or seat in the Carburetor. Put an inline fuel shutoff valve or replace the seat and needle.
@pattayperformance
8 ай бұрын
TY
@10mmsocket32
9 ай бұрын
I understand your concern that these engines must be running for the fuel to be fed up to the carburetor from the back; however, I believe fuel will naturally run to the carburetor depending on how much the tank is filled. I would recommend to you to do a simple test. Fill the tank all the way and remove the fuel line from the tank to the fuel pump at the pump. If you see flow, then maybe answers your question. Another thing can be to remove the fuel line from the carburetor and see if there is flow with the engine off. Either way, I think you most likely have a bad needle/seat in the carburetor.
@pattayperformance
9 ай бұрын
So at that fuel level shown in the video, I pulled the line for the carb and get nice stream of gas. I assumed that no way engine can get fuel with out the engine spinning…that is what has me at a loss
@10mmsocket32
9 ай бұрын
@@pattayperformance Amazon carb by any chance?
@pattayperformance
9 ай бұрын
@@10mmsocket32 briggs OEM
@10mmsocket32
9 ай бұрын
@@pattayperformance Worth doing a pressure test on the carb. I still think it’s a float, needle, seat issue.
@pattayperformance
9 ай бұрын
@@10mmsocket32 OK, TY
@mrbriggs68
9 ай бұрын
It fuel solenoid is not working correctly if it was it would shut off fuel it's a vacuum once it starts it will keep flowing . much like when you prime a hose to pump gas out of a tank
@pattayperformance
9 ай бұрын
Ok… Gonna pull the fuel solenoid tomorrow still hooked up and turn the key to see if pops up and down.
@robertmailhos8159
9 ай бұрын
That one has me stumped on the engine getting gas in the crank case you might need to put a fuel shut off valve on the gas line ether before the fuel filter or after the fuel filter
@pattayperformance
9 ай бұрын
It doesn’t make sense to me but I’m also new to tractors so it doesn’t take much stump me as well. Just wanted to confirm on how the system works. I didn’t know pump diaphragm failure would result in gas being bleed through. I just thought pumps work or they don’t.
@robertmailhos8159
9 ай бұрын
@@pattayperformance There are times that they get a crack in the body of them which will cause them to not pump fuel to the carb best thing to do is replace it with a New one and see what happens
@nickflopper
9 ай бұрын
You need a carb these always flood out the fuel solenoid has no effect on if a needle and seat floods or not
@pattayperformance
9 ай бұрын
Why is fuel still being fed to the carb via fuel pump when the engine isn’t running?
@nickflopper
9 ай бұрын
Probably just a clogged gas cap vent, also it doesn't look like the tank is too far below the carb
@rickbroerman9267
9 ай бұрын
What's Jason
@pattayperformance
8 ай бұрын
🤣🤣🤣
@christophermccomas5292
9 ай бұрын
Needle and seat
@pattayperformance
8 ай бұрын
TY
@bergan1227
9 ай бұрын
Needle and seat or float
@pattayperformance
8 ай бұрын
TY
@knighthawk86855
9 ай бұрын
I know..... Doesn't make any sense, Just listen, change the carb to a new one, it should solve the problem.
@pattayperformance
8 ай бұрын
I found some hair like cracks in the fuel pump…I replaced the pump and cleaned the carb good to go!
@jamiesawyer5102
9 ай бұрын
Gas tank vent, when pressure build from gas pump it is not releasing the pressure from gas tank vent.
@pattayperformance
9 ай бұрын
Where is the vent? I’ve look at generic photos on ebay and I see nothing…just a feed for fuel.
@jamiesawyer5102
9 ай бұрын
On gas cap, or rubber hose out of top tank? leave gas cap off after shutting engine, it should stop the siphon.
@jamiesawyer5102
9 ай бұрын
If not external then it must be a gas cap vent. Tanks have to vent from somewhere. Maybe not original cap.
@jamiesawyer5102
9 ай бұрын
Your videos are always great, thanks for what you do.
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